420555880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{553363}}^1$

素因数の和:553393

約数の個数: 32

約数和(自身を含む): 996055200

約数和(自身を除く): 575499320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 553363, 1106726, 2213452, 2766815, 4426904, 5533630, 10513897, 11067260, 21027794, 22134520, 42055588, 52569485, 84111176, 105138970, 210277940, 420555880]

約数ペア:

[(1, 420555880), (2, 210277940), (4, 105138970), (5, 84111176), (8, 52569485), (10, 42055588), (19, 22134520), (20, 21027794), (38, 11067260), (40, 10513897), (76, 5533630), (95, 4426904), (152, 2766815), (190, 2213452), (380, 1106726), (760, 553363)]